Matrix roll and method of making the same



E. E. WINKLEY June 30 MATRIX ROLL AND METHOD OF MAKING THE SAME Filed Deo, i9, 1921 3 Sheets-Sheet 1 LUHUHIIIIIHIIIHIII IIIHIMUI [UlllllllIl!IIIHIHIIIIIIHHIHIIII I Il 1 llllHllHiIIIHIHIIlliII Il HIHHI June 30, 1925.

E. E. WINKLEY MATRIX ROLL AND METHOD' oF MAKING THE sm:

3 Sheets-Sheet 2 Filed De@t 19, 1921 Juri@ 30, 1925.

E. E. WINKLEY MATRIX ROLL AND METHOD OF MAKING THE SAME Filed Dec, 19, 1921 3 SheebS-Shee 3 Patented .June 30, 1925.

ERSTUS E. WINKLEY, OF LYNN, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEVJ JERSEY, A; CORPORATION OF NEW JERSEY.

`lVIA'J'I/lii OLL AND METHOD OF MAKES@ THE SAME.

Application filed December 19, 1321. Serial No. 523,527.

T o all whom t omg/.concern .f

Be it known that l, EnAsTUs E. VViNKLnY, a citizen of thel United States, residing at Lynn, in the county of Essex and State of Massachi-isetts, have invented certain lmprovements in, Matrix- Rolls and Methods of Making the Same, of which the following description, in connection with the accompanying drawings, is a specification7 like reference characters on the drawings indicatirig like parts in the several figures.

The invention relates to a roll or segment having a matrix or mould on its periphery and to a method of and apparatus for male ing such rolls or segments.

lllhile the invention is applicable to matrix rolls adapted for various uses it has been developed With special' reference to sole shaping matrix rolls for leveling shoe soles and will be further explained as applied to such rolls.

ln order that the sole of a. lasted shoe may be` accurately shaped by a leveling roll which rolls along the soleV it is desirable that the rollI be provided on; its periphery with a matrix corresponding to the shape which is toK be given to the solo. It is also desirable that the pressure yapplied by the roll to the sole, or'at least to the comparatively flat portions thereof such as the forepart, should be a rolling pressurey applied Without lengthwiseslip. A matrix roll which is Well adapted for applying such pressure may he produced in accorda-nce with a. feature of the present inventionA by impressing a pattern form corresponding to a leveled sole inthe periphery of a body of plastic material While rotating the hody about an axis which travels relatively to the pattern in a path parallel tox the surface of the pattern along its medial line and at arate equal and opposite tothe surface speed of the moulded plastic at its lin-al l-ine of Contact with the form, and thereafter' reproducing in iin plastic material theV cylindrical matrix thus generated.. By this method of forming the matrix the shapeY to be given the sole is developed on a surface revolution, onapproximately suoli a surface concentric With' the leveling roll, and the matrix may be given a rolling Contact With the sole to be leveled With-out material slip, by so rotating the roll as it progresses along the sole that its surface speed at the line of contact with the sole is equal and opposite to the rate of progression of the rollV along the sole.

ln leveling shoes having a Well defined line of demarcation betweentwo portions of the sole as, for instance, in leveling high arch shoes havingshanks or in leveling' spring heel shoes7 it may be desirable to develop that portion of the matrix which corresponds to the sharply inclined portion of the sole adjoining the ball line in high arch shoes or adjoining the heel line in spring heel shoes on a. surface which bulges abruptly from the cylindrical. surface on which the forepart of the heel of the matrix is developed, in order that the pressure applied by the roll to the inclined surface maybe more nearly normal to such surface. Such p arts of the matrix may be generated by causing the axis about which the plastic body rotates as it progresses along the pattern t0 follow a. path not parallel but bearing a predetermined relation to the surface of the pattern along its medial line.

ln forming either the cylindrical concentric part of the matrix or the eccentric bulging part the methodis generically the same since in either case the matrix is generate-d by the pattern form in a plasticmaterial which is rotated about an axis having a relative movement lengthwise of the form the rate of which 'bears a predetermined relation to the speed of rotation and the path of which hears a predetermined relation to the surface of the form along its medial line, the path of movement depending upon the action which it is desired that the matrix of the leveling roll shall have as the roll travels along the shoe sole.

The invention is illustrated in the drawings in connection ,with the making of a level-ing roll intended' for use in leveling shoes having high arch shan-hs and will be further explained iny this connection.

ln the drawings Fig. l is a planvieiv of the apparatus which may be conveniently used in developing a: matrix in the periphery of a plastic body, Fig. 2 is a vertical sectional elevation of the same, Fig; 3 is a vertical transverse sectional view through the axis of the plastic body carrying roll, Fig. 4f is adetailed view of the core of the rolt llig. 5- is a sectional view on line 5 5,

11 is provided on its periphery with al matrix having a forepart Q developed on a surface of revolution, the axis of which coincides with the axis ofthe roll. The matrix also has a shank portion 4 which departs from the contour of the forepart and then gradually approaches or merges with a surface of revolution 6 near or at the heel breast line. In making this roll by the Ymethod of the present invention a facsimile of the matrix on the roll is first generated in the periphery of a roll of plastic material by a: facsimile of the sole to be produced and the matrix thus generated is then reproduced in implastic material as for instance by utilizing the generated matrix as a. pattern from which to cast a metal leveling roll.

The matrix may be conveniently generated in the plastic inaterialbythe appa-` ratus shown in Figs. l, 2 and 3. As here shown a. pattern form 8 which is a duplicate or facsimile of that to be given to a shoe sole by the completed leveling roll is supported between two guide plates 10, the upper edges of which form guides which support and guide a. plasticcarrying roll which travels over the Vpattern form. The pattern may be a leveled shoe sole or a form having the shape of a. leveled shoe sole. The plastic body carrying roll is provided with cylindrical heads l2 which rest on the guides and with a tapered and ribbed core 14- secured to the heads by screws 16. The heads are provided on their outer ends with gears 18, the pitch surfaces of which coincide with the cylindrical surfaces of the heads and these gears are engaged by racks 2O arranged along the outer sides of the guide plates. The racks are pivotally supported at'one end so that they may rise and fall with the roll as it rolls along the guides and they are .held in engagement with the gears by guide stirrups 22 hungon trunnions 24; on the heads. The parts are maintained in proper relation by a shaft 26 passing through the roll and having retaining collars 28 secured to its ends outside the rack supporting stirrups. Y

To generate a matrix the space about the core llt and between the heads l2 is filled with plastic materialO which projects beyond the peripheries of the heads and then the roll is moved along the `guides while being maintained in engagement therewith termine the path of travel or" the axis of" the roll with relation to the surface of the pattern. As shown those parts of the guides which support the roll during its tra-vel over the forepart of the pattern are in cylindrical surface containing the forepart surface of the pattern sole so that this surface will always lie in the pitch surface of the gears as they roll past it. rlhe forepart 32 of the .matrix will, therefore, be generated on a cylindrical surface concentric with the roll and by a rolling contact between the finely moulded plastic andthe pattern. Those parts of the guides 34 which support the roll as it passes from the forepart to the shank risc above the surface, of the pattern as shown in Fig. 2, andY then gradually return to said surface so that as the roll rolls over this part of the guides the pattern will gencrate a bulging eccentric shank 36 for the i matrix which gradually approaches or re lturns to a surface concentric with the matrix forepart. During the travel of the roll over the pattern the plastic material may be pressed and banked up about the marginal edges to secure a well definedimw pression of the pattern.

After t-he matrix has been thus generated in the periphery of the plastic roll by the fac-simile of the shoe sole the plastic mate rial is removed from the roll by detaching the heads l2 and withdrawing the tapered core and ribs. The. plasticbody will then be in the form of a sleeve such as shown in Figs. 7, 8 and 9 provided on its periphery with the generated matrix. This sleeve may then be utilized as a pattern in casting the leveling roll shown in Figs. 10 and 11. This roll may be provided at its ends with attached gears similar to the gears 18 and may be rolled over the sole to be leveled while the gears are maintained in engagement with racks similar to the racks 2() and when so usedthe concentric part 2 will apply a rolling pressure without material lengthwise slip to the forepart of the sole and then as the ball line is reached the bulging shank portion 4 will swing quickly in against the sharply inclined surface of the shank near the ball line and in crowding the axis of the roll away from the surface of the sole will apply its pressurej in a direction approximately normal to this surface and at the same time will tend to draw the sole somewhat toward the ball line, t

`l'Vh-ile` the invention has been shownl and described as applied to the mak-ing of a sole leveling matrix roll it Willbe understood that it is not limited in its application to the making of such rolls. For instance, a matrix such as indicated at 38 in Fig. 8 corresponding to the marginall outline of the pattern may be generated for use as a cam pattern for' controlling themovement of some, instrument- 'which should have a path of movement corresponding to the outline of the sole.y It will also be understood that the broader features of the invention may be utilized with advantage in generating and'makingfmatrix rolls for any use requiring an accurately shaped' matrix on the periphery of the roll.

What is claimed is:

lll A step in the method of making matrix rolls which consists in impressing a pattern form in the periphery of a plastic body Whilerotating the body and giving its axis of rota-tion a pre-determined path' of travel with relation to the pattern. i

2. rl`he method of making matrix rolls which consists in impressing a pattern form 1in the periphery of a plastic body While rotating the body and giving Vits axis of rotation a predetermined path of travel With relation to the pattern, and reproducing the generated' matrix in implastie material.

3. The method of making matrix rolls which consists in generating a matrix in the surface of a rollV having a plastic periphery by a facsimile of the shape to be produced by the matrix roll, and then reproducing` the generated matrix in implastic material.

4. rlhe method of making matrix rolls which consists in impressing a pattern form in the periphery of a body of plastic material Which is rotated about an axis having a relative movement along the form, the rate of which bears a predetermined relation to the speed of rotation and the path of which bears a predetermined relation to the surface of the form along which the axis progresses, and thereafter reproducing the generated matrix in implastic material.

5. A step in the method of making matrix rolls which consists in impressing a pattern form in the periphery of a body of plastic material While rotating' the body about an axis which progresses along the pattern in a path parallel to its surface and at a speed equal and opposite to the surface speed of the moulded plastic material at its final line of the contact With the pattern.

G. The method of making matrix rolls which consists in impressing a pattern form in the periphery of a body of plastic material While rotating` the body about an axis which progresses along the pattern in a path parallel to its surface and at a speed equal and opposite to the surface speed of the moulded plastic material at its final line of contact with. the pattern, and reproducing the 'generated' matrixy in implastic material.

7. A step in the method of making matrix rolls which consists in rolling a body of plastic materia-l over a pattern. form While supported. byl acylindrical surface' which rolls along a surface correspondingv in outline to or bearing a predeterminedE relation to a selected line of the form.`

S. A step in the method of forming matrixrolls Which consists in impressing. a pattern formiV in a plastic body While`4 rolfing the body along the pattern With a` mo'- tion: corresponding to the rolling, of a con'A centric cylindrical surface along the medial linek of the form or a line bearing a predeterminated relation to such medial line.

9. A step in the method of making matrix rolls which consists in rolling ai plastic body along. a pattern formk While maintaining the axis of theV body at a uniform distance from the surface of the pattern.

l0; A step in the method of making matrix rolls which consists in generating a. matrix in the surface' ofl a roll' having a plastic periphery by a pattern which is a facsimile of a shoe sole.

lll. A method of making shoe leveling matrix rolls which consists in generating a matrix in the surface' of a rol-ly having a plastic periphery by a pattern which is a facsimile of aY leveled sole', andl reproducing the generating matrix in implastic material.

12. The methodl of making matrix rolls Which consists in impressing a pattern which is a facsimile of shoe sole in: the periphery of abody of plastic material While rotating the body about an axis which progresses along the pattern in a path parallel to the medial surface of the pattern and at a rate of speed equal and opposite to the surface speed of the moulded plastic material at its final line of contact With the pattern, and reproducing in implastic mate-rial the cylindrical matrix thus generated.

13. A method of making sole leveling matrix rolls which consists'in rolling a plastic body over a facsimile of a. shoe sole to generate that part of the matrix corresponding to a comparatively flat part of the sole on a cylindrical or concentric surface and that part of the matrix corresponding to an adjoining sharply inclined'part of the sole on a bulging eccentric surface, and reproducing the generated matrix in implastic material.

14. A sole leveling roll provided 4on its periphery With a matrix having a part developed on a concentric surface and a part developed on a bulging surface projecting beyond said concentric part.

15. A sole leveling roll provided on its periphery'ivith a matrix having a orepa'rt ing a predetermined relation to the contourk of the form, and a holder arranged to support a. plasticV body, and-,to Y' be `traversed along the guide over the form. i f

17; In a machine `of the class described, means for supporting a form, a guide having a predeterminedL relation tothe contour ol' the form, a holder arranged to support a plastic body, and vto be tra-versed along the guide over .tlie'ornn and means for rotating the holder as it passes over the form. :j i

18. In a machine of thel class described, a formhaving the contonrofashoe to be leveled,` a gtiide having a predetermined relationV to ythe vertical profile of the form, and a holder arranged to support ya mass of plastic material and to roll along the guide.

19. In a machine of the class described, a. form having the contour of a shoeto be. leveled, ya guide having a predetermined relation to the vertical proiileof the forni,

aholder` arranged tosupport a mass of` plastic material andto roll along the guide, and means for rotating the holder as: it rolls along the guide, at a speedvhavmg a predetermined relation to its natural speed of rotation alongthe guide.

20. In a machine oiI the class described, a. form having the contour of a shoe to be leveled, a guide having a predetermined relation to the verticalproile of the form, a

to driverthe gearras the holder rolls over the guide.

2l. In a machine of the class described, a

form having `the contour of a shoe to be leveled, a guide having apredeterlnined re lation to the vertical proilevof the form, a

Y holder arranged to support a mass of plastic material and to roll along the guide, a gear on the holder having its pitch line inregistration With the guide, and a rack arranged to drive the gear as the holder rolls over the guide, said rack being supported by the holder.

Y 22. In a machine of 'the class described, a form having the contour of a'shoe to be leveled, a guide having a predetermined `relation to the vertical profile of the form, a holder arranged to support a mass of plastic material and to roll along the guide, a gear on the holder having its pitch line in regis- `trationwith the guide., and a rack arranged to drive the gear as the holder rolls over the guide, Said rack beingv pivoted on. the main `frame of the machine and arranged to followl the holder as it rolls over the guide. n

23. A form havinga portion with a proile shaped vlike that of the forepart of a shoe to be treated, combined with a portion having a vertical profile projecting` substantially above the profile 0f the shank portion of the said shoe'.

In testimony whereof I have signed my name to thisV specification.

ERASTUS E. VVINKLEY 

